diff options
Diffstat (limited to 'drivers/gpio/gpio-rcar.c')
| -rw-r--r-- | drivers/gpio/gpio-rcar.c | 75 |
1 files changed, 25 insertions, 50 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 584484e3f1e3..c49522efa7b3 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -21,7 +21,6 @@ #include <linux/io.h> #include <linux/ioport.h> #include <linux/irq.h> -#include <linux/irqdomain.h> #include <linux/module.h> #include <linux/of.h> #include <linux/pinctrl/consumer.h> @@ -38,7 +37,6 @@ struct gpio_rcar_priv { struct platform_device *pdev; struct gpio_chip gpio_chip; struct irq_chip irq_chip; - struct irq_domain *irq_domain; }; #define IOINTSEL 0x00 @@ -82,14 +80,18 @@ static void gpio_rcar_modify_bit(struct gpio_rcar_priv *p, int offs, static void gpio_rcar_irq_disable(struct irq_data *d) { - struct gpio_rcar_priv *p = irq_data_get_irq_chip_data(d); + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv, + gpio_chip); gpio_rcar_write(p, INTMSK, ~BIT(irqd_to_hwirq(d))); } static void gpio_rcar_irq_enable(struct irq_data *d) { - struct gpio_rcar_priv *p = irq_data_get_irq_chip_data(d); + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv, + gpio_chip); gpio_rcar_write(p, MSKCLR, BIT(irqd_to_hwirq(d))); } @@ -131,7 +133,9 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p, static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type) { - struct gpio_rcar_priv *p = irq_data_get_irq_chip_data(d); + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv, + gpio_chip); unsigned int hwirq = irqd_to_hwirq(d); dev_dbg(&p->pdev->dev, "sense irq = %d, type = %d\n", hwirq, type); @@ -175,7 +179,8 @@ static irqreturn_t gpio_rcar_irq_handler(int irq, void *dev_id) gpio_rcar_read(p, INTMSK))) { offset = __ffs(pending); gpio_rcar_write(p, INTCLR, BIT(offset)); - generic_handle_irq(irq_find_mapping(p->irq_domain, offset)); + generic_handle_irq(irq_find_mapping(p->gpio_chip.irqdomain, + offset)); irqs_handled++; } @@ -265,29 +270,6 @@ static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset, return 0; } -static int gpio_rcar_to_irq(struct gpio_chip *chip, unsigned offset) -{ - return irq_create_mapping(gpio_to_priv(chip)->irq_domain, offset); -} - -static int gpio_rcar_irq_domain_map(struct irq_domain *h, unsigned int irq, - irq_hw_number_t hwirq) -{ - struct gpio_rcar_priv *p = h->host_data; - - dev_dbg(&p->pdev->dev, "map hw irq = %d, irq = %d\n", (int)hwirq, irq); - - irq_set_chip_data(irq, h->host_data); - irq_set_chip_and_handler(irq, &p->irq_chip, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); /* kill me now */ - return 0; -} - -static struct irq_domain_ops gpio_rcar_irq_domain_ops = { - .map = gpio_rcar_irq_domain_map, - .xlate = irq_domain_xlate_twocell, -}; - struct gpio_rcar_info { bool has_both_edge_trigger; }; @@ -372,10 +354,8 @@ static int gpio_rcar_probe(struct platform_device *pdev) int ret; p = devm_kzalloc(dev, sizeof(*p), GFP_KERNEL); - if (!p) { - ret = -ENOMEM; - goto err0; - } + if (!p) + return -ENOMEM; p->pdev = pdev; spin_lock_init(&p->lock); @@ -413,7 +393,6 @@ static int gpio_rcar_probe(struct platform_device *pdev) gpio_chip->get = gpio_rcar_get; gpio_chip->direction_output = gpio_rcar_direction_output; gpio_chip->set = gpio_rcar_set; - gpio_chip->to_irq = gpio_rcar_to_irq; gpio_chip->label = name; gpio_chip->dev = dev; gpio_chip->owner = THIS_MODULE; @@ -428,16 +407,19 @@ static int gpio_rcar_probe(struct platform_device *pdev) irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED | IRQCHIP_MASK_ON_SUSPEND; - p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, - p->config.number_of_pins, - p->config.irq_base, - &gpio_rcar_irq_domain_ops, p); - if (!p->irq_domain) { - ret = -ENXIO; - dev_err(dev, "cannot initialize irq domain\n"); + ret = gpiochip_add(gpio_chip); + if (ret) { + dev_err(dev, "failed to add GPIO controller\n"); goto err0; } + ret = gpiochip_irqchip_add(&p->gpio_chip, irq_chip, p->config.irq_base, + handle_level_irq, IRQ_TYPE_NONE); + if (ret) { + dev_err(dev, "cannot add irqchip\n"); + goto err1; + } + if (devm_request_irq(dev, irq->start, gpio_rcar_irq_handler, IRQF_SHARED, name, p)) { dev_err(dev, "failed to request IRQ\n"); @@ -445,17 +427,11 @@ static int gpio_rcar_probe(struct platform_device *pdev) goto err1; } - ret = gpiochip_add(gpio_chip); - if (ret) { - dev_err(dev, "failed to add GPIO controller\n"); - goto err1; - } - dev_info(dev, "driving %d GPIOs\n", p->config.number_of_pins); /* warn in case of mismatch if irq base is specified */ if (p->config.irq_base) { - ret = irq_find_mapping(p->irq_domain, 0); + ret = irq_find_mapping(p->gpio_chip.irqdomain, 0); if (p->config.irq_base != ret) dev_warn(dev, "irq base mismatch (%u/%u)\n", p->config.irq_base, ret); @@ -471,7 +447,7 @@ static int gpio_rcar_probe(struct platform_device *pdev) return 0; err1: - irq_domain_remove(p->irq_domain); + gpiochip_remove(&p->gpio_chip); err0: pm_runtime_put(dev); pm_runtime_disable(dev); @@ -484,7 +460,6 @@ static int gpio_rcar_remove(struct platform_device *pdev) gpiochip_remove(&p->gpio_chip); - irq_domain_remove(p->irq_domain); pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; |